Screw Rods | McMaster-Carr

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System of Measurement

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Threaded on Both Ends

Threaded on One End

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Left Hand

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Metric Rounded Trapezoidal

Thread Pitch

Component

Ball Screw with One Machined End

Fastener Strength Grade/Class

Finish

Hot-Dipped Galvanized

Nickel Chrome Plated

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Zinc Yellow-Chromate Plated

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Thread Spacing

Tensile Strength

10,000 psi to 19,999 psi

20,000 psi to 39,999 psi

40,000 psi to 99,999 psi

100,000 psi or greater

Not Rated

Thread Fit

Acme Class 2C

Acme Class 2G

ASME Interference Class 5

Metric Class 6g

Metric Class 6h

Metric Class 6H

Metric Interference Sk6

Metric Trapezoidal Class 7e

Metric Trapezoidal Class 7H

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Unified Standard Class 1B

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Unified Standard Class 3A

Thread Length

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Fastener Strength Rating

Performance

Electrically Insulating

DFARS Specialty Metals

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Compliant with Exemptions

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REACH

Compliant

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

Diameter

Gender

11,173 Products

Power Transmission

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

976 products

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

18 products

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

838 products

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

808 products

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

205 products

End Supports for Ball Screws and Precision Lead Screws

Brace and secure the ends of ball screws and precision lead screws

16 products

Linear Shafts

Pair with linear bearings and shaft supports to create smooth, precise motion

58 products

Lead Screw Collars

Position components and limit travel along a lead screw

55 products

Ball Screw/Splines and Bearings

Transmit rotary power, move loads along the shaft, or do both at once

3 products

Linear Drive Nuts

Create a linear positioning system on a rotary shaft without a lead screw

3 products

Roller Screws and Nuts

Create more points of contact to handle much higher loads than ball screws and nuts of the same size

8 products

Fastening and Joining

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

5,370 products

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

184 products

Thread Adapters

Join threads of a different type, size, and gender

59 products

Standoffs

Separate, position, or connect components in assemblies

1,259 products

Studs

Press, weld, or screw in place to add a threaded fastening point

637 products

Dowel Screws

Screw into holes to join two pieces of wood

13 products

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

36 products

Fabricating and Machining

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

627 products

Clamping Screws

Apply pressure through a flat-tipped screw to hold material in place

17 products